[Webkit-unassigned] [Bug 197438] New: REGRESSION(r244494): editing/pasteboard/5761530-1.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=197438

            Bug ID: 197438
           Summary: REGRESSION(r244494): editing/pasteboard/5761530-1.html
                    is flaky
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML Editing
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rniwa at webkit.org
                CC: wenson_hsieh at apple.com

Truitt Savell 2019-04-30 09:56:55 PDT
It looks like the changes in https://trac.webkit.org/changeset/244494/webkit

has caused the test editing/pasteboard/5761530-1.html to become flakey. 

I was able to reproduce this using command:
run-webkit-tests editing/pasteboard/5761530-1.html --iterations 20 --ios-simulator
The test passes on 244493 and with fail on 244494

History:
https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=editing%2Fpasteboard%2F5761530-1.html

Diff:
--- /Volumes/Data/slave/ios-simulator-12-release-tests-wk2/build/layout-test-results/editing/pasteboard/5761530-1-expected.txt
+++ /Volumes/Data/slave/ios-simulator-12-release-tests-wk2/build/layout-test-results/editing/pasteboard/5761530-1-actual.txt
@@ -1,3 +1,3 @@
 This tests to see that tabs are put into tab spans when they are copied individually. The pasted tab should be inside of a tab span, not a style span. To run the test manually, paste and then inspect the editable region, and ensure that there is a tab span at the beginning of the editable div.

-<span class="Apple-tab-span" style="white-space: pre;">        </span><span class="Apple-tab-span" style="white-space:pre;">   </span>xxx
+<span class="Apple-tab-span" style="white-space: pre;"> </span><span class="Apple-tab-span" style="white-space:pre;"> </span>xxx

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